.w {
    width: 80%;
    max-width: 1200px;
    margin:  0 auto;
}
.warpBox {
    min-height: 100vh;
    background-repeat: repeat-y;
    background-size: 100%;
    background-image: url(../images/img/about_bg.png);
    padding-bottom: 3.2857rem;
}
.content_1 {
    padding-top: 2.5rem;
    font-size: 18px;
    line-height: 30px;
    color: #212121;
}
.content_1>div {
    width: 32%;
    max-height: 450px;
    position: relative;
}
.content_1 img {
    width: 100%;
    height: 100%;
    display: block;
}
.content_1>div>div {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    bottom: 0;
    width: 100%;
    font-weight: 500;
    padding: 1.4286rem 0;
    font-size: 2rem;
    background-color: rgba(255, 255, 255, 0.76);
}
.content_1>div>div:hover {
    background-color: #0a3da4;
    color: #fff;
    cursor: pointer;
}
/* @media (max-width:900px) {
    .content_1>div {
        width: 100%;
        margin-bottom: 30px;
        max-height: none;
    }
} */